Roof Framing Plan Flat Roof

In addition to being used in residential construction the flat roof is typically used on commercial structures to provide a platform for heating and other mechanical equipment.

Roof framing plan flat roof.

The run or half the building span is the base of the triangle. Ridge beam sits below the rafters. Often the flat roof has a slight pitch in the rafters. In order to do roof framing properly it is important to understand the unique shape and dimensions of your roof since these will greatly impact the geometry of the roof frame.

Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board. Ridge board ridge beam. One of the most important parts of building a sturdy roof is the initial roof framing plan. A ridge board is a horizontal member of the roof frame.

The rise or height of the roof at its peak is the altitude of the triangle. Flat roofs are always built at a slight incline at least 1 8 inch per foot. Think of a flattened hip roof. You can do this with a foam layer that exactly fits your roof.

From there the flat roof system you choose will determine the materials you apply. This will help you create a flat roof framing plan. The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. If you build a flat roof try to have it slope in multiple directions to drains or gutters.

It is not ideal for snow or heavy rain but modern materials and proper drainage have helped. Transfers the loadof the roof through the raftersto walls below. The point at which all the raftersare attached to. Ridge board v s beam.

Some roofs actually slope in several directions ensuring optimal water runoff. When used it must be shown on the roof plan flat roof. Figure 20 9 shows how a flat roof could be repre sented on the roof plan. Roof framing simply describes how a group of rafters and beams are fitted or joined together in order to provide support for the roof covering.

A flat roof has a slope of 1 8 per foot to 2 12. Figure 20 8 shows the materials commonly used to frame a flat roof. Partially these will depend on the style of roof you ve selected but you ll also have some wiggle room depending on the design elements of the house. Parts of a roof.

The flat roof is a very common style in areas with little rain or snow. And the line length measurement from the roof peak to the building wall is the hypotenuse. Supported by lally columns.